Widin Carbide Corner Radius End Mill - 2 Flute Long Neck Back Draft Type - 3mm x20mm x R0.2

Widin Carbide Corner Radius End Mill is a precision cutting tool designed for machinists who demand clean edges, rigidity, and long-term durability in hard materials. Built for 3 mm cutting diameter, a 20 mm long neck, and a precise 0.2 mm corner radius, this 2-flute end mill delivers dependable performance in challenging applications.

• Diameter: 3 mm
• Neck length: 20 mm long neck for reach in deep slots and pockets
• Corner radius: R0.2 mm for smoother edges and reduced wear on the workpiece
• Flute count: 2 flutes for efficient chip evacuation
• Helix angle: 30° for stable cutting action and good surface finish
• Material: Ultra-fine grain carbide for high strength and extended tool life
• Center cutting: Yes — versatile for plunging, contouring, and profiling
• Back draft design: Improves rigidity, minimizes vibration, and reduces chatter
• Material compatibility: Suitable for machining high-hardened materials up to HRc70
• Rake-angle flexibility: Neck-length adjustments support different rake angles and machining scenarios

In practical use, this end mill excels in pocketing, profiling, and edge finishing where precision and edge integrity matter. The long neck and back draft geometry provide stability when cutting deep into cavities or following sloped surfaces, while the 0.2 mm corner radius preserves sharp corners without introducing excessive wear. The combination of a 2-flute design and 30° helix promotes efficient chip clearance and a smooth cutting action, reducing built-up edge and delivering repeatable tolerances across a range of high-hardness workpieces. For operators, this means reliable tool life, fewer tool changes, and consistent results in demanding machining operations.